307 Series High-Lift Race Camshaft – For Big Block Honda-Style OHV Engines (GX390, 11–15hp)
Designed for high-performance racing applications, this camshaft is suitable for:
Honda GX240, GX270, GX340, GX390 engines
420cc Predator engines
460cc Honda-style OHV engines
Most 9–15hp Honda-style overhead valve (OHV) motors
Compatibility Notes:
Not compatible with:
– LCT 414 engines
– Some 301cc Predator engines with large journal cranks
Specifications:
Series: 307
Valve lift: Approximately 0.307″
Duration: 260°
Target RPM: 7,500+
Designed for engines producing 30+ horsepower
Recommended for use on 1/4 mile or longer tracks
Requirements:
Dual valve springs (mandatory)
1.3 ratio rockers
High-compression fuel setup (12:1 or higher)
Suitable for race gas or methanol
Installation Note:
Engine block or crankshaft may require clearancing to prevent contact with camshaft lobes.
New. Click the condition meter to learn more about used items.
